Watson described the purpose of psychology as: âTo predict, given the stimulus, what reaction will take place; or, given the reaction, state what the situation or stimulus is that has caused the reactionâ (1930, p. 11). * All behavior is learnt from the environment.
Additional tests including penetration,solubility, and ductility are made on the residue. Cutback asphalt grades and tests There are several grades for each of the three types ofcutbacks â rapid curing (RC), medium curing (MC), andslow curing, (SC). The grades include 70, 250, 800, and3000.
Since grades are assigned by individual manufacturers, one company's professional grade may be another's commercial grade.. The best course of action is to check the product warranty and choose the sealer based on the manufacturer's stated life span. Dykes Paving: The Importance of Sealing Your Asphalt Driveway.